Results 11 to 20 of about 164,234 (256)

Validation and refinement of allometric equations for roots of northern hardwoods [PDF]

open access: yes, 2007
The allometric equations developed by Whittaker et al. (1974. Ecol. Monogr. 44: 233–252), at the Hubbard Brook Experimental Forest have been used to estimate biomass and productivity in northern hardwood forest systems for over three decades.
Hamburg, Steven P.   +2 more
core   +3 more sources

Preliminary Exploration of the Red Pigment from Scytalidium cuboideum as a Cellulosic Pulp Colorant

open access: yesChallenges, 2022
Pollution from the international dye industry continues to be a global problem. Biotechnology offers new options, including a closer look at select wood decay fungi to replace inorganic dyes.
Derek W. Stone   +3 more
doaj   +1 more source

Sustainable Process for the Depolymerization/Oxidation of Softwood and Hardwood Kraft Lignins Using Hydrogen Peroxide under Ambient Conditions

open access: yesMolecules, 2020
The present study demonstrated a sustainable and cost-effective approach to depolymerize/oxidize softwood (SW) and hardwood (HW) kraft lignins using concentrated hydrogen peroxide at temperatures ranging from 25 to 35 °C, in the absence of catalysts or ...
Zaid Ahmad   +3 more
doaj   +1 more source

Experimental study on full-scale glulam beams manufactured with Eucalyptus urograndis

open access: yesMaderas: Ciencia y Tecnología, 2022
Engineered wood products need alternatives of raw materials to their production. The hybrid Eucalyptus urograndis has great potential to supply the demand of this industrial sector.
Rodrigo de Souza Nogueira   +3 more
doaj   +1 more source

Case Study on Ecosystem Biodiversity Conservation Using the Solutions Adopted by a Forest Management

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
The paper analyzes the production unit U.P. X "Comarnic", which is located in the Western Carpathians, Banat Mountains, respectively Anina Mountains.
Constantin Banu   +3 more
doaj  

Threatened Woody Plants of Georgia and Micropropagation as a Tool for In Vitro Conservation

open access: yesAgronomy, 2021
Georgia is the major part of the Caucasus; it is considered as one of the distinguished regions of the world with respect to biodiversity. The majority of Georgia’s biodiversity is connected with forest ecosystems, which cover about 38% of the country’s ...
Mariam Gaidamashvili, Carla Benelli
doaj   +1 more source

Bonding Performance of Melamine–Urea–Formaldehyde and Polyurethane Adhesives for Laminated Hybrid Beams and Their Selected Mechanical Properties

open access: yesBuildings, 2023
Beech (Fagus Sylvatica L.) is a prevalent tree species in Slovenia and is suitable for manufacturing glulam beams. However, beech wood has certain limitations that can potentially be mitigated by combining it with Norway spruce (Picea abies (L.) Karst ...
Andrej Fašalek   +4 more
doaj   +1 more source

Effect of different moisture contents on the thermal properties of wood [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2019
Moisture content is one of the most important properties of wood. The primary purpose of this paper is to examine the dependence between thermal properties and different moisture contents of softwood, hardwood and medium hardwood samples with dimensions ...
Kotoulek Petr   +6 more
doaj   +1 more source

Characterization of tannin extracts derived from the bark of four tree species by HPLC and FTIR

open access: yesForest Science and Technology, 2023
The objective of this work was the extraction and quantification of tannins obtained from the bark of four tree species from the forests of Ixtlán de Juárez, Oaxaca, Mexico (Arbutus xalapensis Kunth., Prunus serotina Ehrh., Quercus crassifolia Humb.
Faustino Ruiz-Aquino   +4 more
doaj   +1 more source

Phylogeny and taxonomy of the Ophiostoma piceae complex and the Dutch elm disease fungi [PDF]

open access: yes, 2001
The Ophiostoma piceae complex forms a monophyletic group of insect-dispersed pyrenomycetes with synnemata (Pesotum) and micronematous (Sporothrix) synanamorphs. Other species of Ophios-toma outside of the O.
Farrell, Roberta L.   +4 more
core   +2 more sources

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